Struggle of life, or the natural history of stress and adaptation / by Martial Rossignol ... [et al.] ; with contrib. by A. Ambroise, E.A.P. de Bruijn & C. CaisneGreen Gold : on variations of truth in plantation forestry / Paul RomeijnGreen Gold : on variations of truth in plantation forestry / Paul RomeijnChinantec shifting cultivation : InTERAcTIVE landuse : a case-study in the Chinantla, Mexico, on secondary vegetation, soils and crop performance under indigenous shifting cultivation / Hans van der WalChinantec shifting cultivation : InTERAcTIVE landuse : a case-study in the Chinantla, Mexico, on secondary vegetation, soils and crop performance under indigenous shifting cultivation / Hans van der WalAn exploratory study to improve the predictive capacity of the Crop Growth Monitoring System as applied by the European Commission / Iwan SupitFive thousand years of sustainability? : a case study on Gedeo land use / Tadesse Kippie Kanshie25 jaar een "Boom der vrijheid" : liber amicorum Prof Dr Ir R. A. A. Oldeman / ed. by Hans Vester, Paul Romeijn and Hans van der Wal